To be fair, you don't know when you might need this. Crypto's useful in authoritarian countries as a means of financing activities the dictator doesn't want you to partake in, like independent media funding, or to move savings to another country in case of a "sudden" foreign currency operation restrictions.

It's even more useful to destabilize a country's economy, finance covert operations and straight out launder money!

Yes, and they are not exclusively, but largely, criminals.